12089+2147 LDS 930AB

 
 
12h 08m 54.66s +21 47' 19.4" P.A. 39 sep 15.5 mag 9.45,14.63 Sp G2V dist. 79.43 pc (259.1 l.y.)
 
 
Coord 2000
12089+2147
Discov num
LDS 930
Comp
AB
Coord arcsec 2000
12 08 54.66 +21 47 19.4
Date first
1936
Date last
2015
Obs
5
Pa first
40
Pa last
39
P.A. Now (θ)
39°
Sep first
16.0
Sep last
15.5
Sep. Now (ρ)
15.5"
Mag pri
9.45
Mag sec
14.63
delta mag (ΔM)
5.18
Spectral class
G2V (yellow)
Pri motion ra
-387
Sec motion ra
-439
Pri motion dec
+038
Sec motion dec
+037
Notes
N V (See Notes, Proper motion indicates physical)
rPM=0.118 (< 0.3, Physical double)
This double is physical.
 
 
12089+2147 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 82153 12089+2147 HDS1714 Aa,Ab 1991 2007 2 281 0.1 9.74 11.99 2.25
Show 82153 12089+2147 LDS 930 AB 1936 2015 5 39 15.5 9.45 14.63 5.18 <===
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
39.3
Precise sep
15.48
Constellation
Coma Berenices
SAO
82153
HIP
59233
Tycho2
1444-00419-1
BD
BD+22 2442
Distance
79.43
Distance ly
259.1
last precise pa
39.3
last precise sep
15.48
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12089+2147 LDS 930 AB 1999 3 39 15.7 9.45 14.63 G2V N DV 120854.91+214719.1
12089+2147 LDS 930 AB 2001 4 39 15.6 9.45 14.63 G2V NVD 120854.91+214719.1
12089+2147 LDS 930 AB 2015 5 39 15.5 9.45 14.63 G2V NV 120854.91+214719.1

If you need more information about this double, apply for a data request form to the WDS.